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+ | |||
+ | |||
+ | ==Examples== | ||
+ | |||
+ | A Linear System: | ||
+ | |||
+ | <math> y(t) = 2x(2t) </math> | ||
+ | |||
+ | <pre> | ||
+ | x1(t) -> Ax1(t) | ||
+ | |+| Ax(t) + Bx(t) -System-> 2Ax1(2t) + 2Bx2(2t) | ||
+ | x2(t) -> Bx2(t) | ||
+ | |||
+ | x1(t) -System-> 2x1(2t) -> 2Ax1(2t) | ||
+ | |+| 2Ax1(2t) + 2Bx2(2t) | ||
+ | x2(t) -System-> 2x2(2t) -> 2Bx2(2t) | ||
+ | </pre> | ||
+ | Therefore, this system is linear |
Revision as of 11:08, 11 September 2008
A system is called linear if:
Examples
A Linear System:
$ y(t) = 2x(2t) $
x1(t) -> Ax1(t) |+| Ax(t) + Bx(t) -System-> 2Ax1(2t) + 2Bx2(2t) x2(t) -> Bx2(t) x1(t) -System-> 2x1(2t) -> 2Ax1(2t) |+| 2Ax1(2t) + 2Bx2(2t) x2(t) -System-> 2x2(2t) -> 2Bx2(2t)
Therefore, this system is linear